Surgical reference clamp



FIG. 1 is a perspective view of one embodiment of a surgical reference clamp showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear side elevational view thereof;

FIG. 6 is a left elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the figures are included for the purpose of illustrating portions of the surgical reference clamp and form no part of the claimed design. 

CLAIM The ornamental design for a surgical reference clamp, as shown and described. 